Issue 454 freebsd (#474)

* freebsd test fix

src/_utils/_git_secret_tools.sh

@@ -575,6 +575,7 @@ function _get_user_key_expiry {
 
   local expiry_epoch
   expiry_epoch=$(echo "$line" | cut -d: -f7)
+  #echo "# got expiry_epoch: $expiry_epoch" >&3
   echo "$expiry_epoch"
 }
 

src/_utils/_git_secret_tools_freebsd.sh

@@ -41,7 +41,8 @@ function __epoch_to_date_freebsd {
   if [ -z "$epoch" ]; then
     echo ''
   else
-    local cmd="date +%F -r $epoch"
+    local cmd="date -I -r $epoch"
+    #echo "# running: $cmd" >&3
     local datetime
     datetime=$($cmd)
     echo "$datetime"